AI-generatedPuerto Williams at a glance
- Best time
- Jan – Feb
- Warmest month
- Jan · 15°
- Warmest sea
- Feb · 9.3°
- Sunshine a year
- 1,460 h
- Rain a year
- 867 mm
- Climate
- Maritime
- Time zone
- UTC−3 / UTC−4
- Elevation
- 7 m
Climate in Puerto Williams
Puerto Williams has a maritime climate with moderate summers and cool, often grey winters. January is the warmest month with average highs of 15 °C, while July is the coolest at 3 °C. With around 1,460 hours of sunshine a year, Puerto Williams is rather dull; January is the sunniest month with 5.5 hours a day.
Holiday weather through the year
Best time to visit Puerto Williams
The best time to visit Puerto Williams is from January to February. The sea stays too cool for a classic beach holiday: even in February it only reaches 9.3 °C. The wettest month is January with 120 mm of precipitation.
Puerto Williams through the seasons
How the weather changes over the seasons, with averages for each.
Puerto Williams in spring
Sep – Nov
Poor
- 7–12 °C by day
- Sea 7 °C
- 4.9 h of sun a day
- 50 rainy days in all
Puerto Williams in summer
Dec – Feb
Fair
- 14–15 °C by day
- Sea 9 °C
- 5.3 h of sun a day
- 66 rainy days in all
Puerto Williams in autumn
Mar – May
Poor
- 6–13 °C by day
- Sea 8 °C
- 3.4 h of sun a day
- 46 rainy days in all
Puerto Williams in winter
Jun – Aug
Poor
- 3–4 °C by day
- Sea 6 °C
- 2.4 h of sun a day
- 38 rainy days in all
Which month for what?
Beach & swimming
No month
Sea from 21 °C, warm and mostly dry
Sightseeing & hiking
No month
15–28 °C and not too much rain
Rainy months
All year
Rainy season or more than 12 rainy days
Snow
Apr – Nov
Snow on 2 or more days
Find your perfect month
Tell us what you like and we rate every month in Puerto Williams for you.
Your best months: December – February
Based on the climate averages; tap a month to see its details.
Weather in October
Weather in October
Holiday weather in October
Poor
Best time to visit: January – February
Where to go in OctoberSea temperature in October
Keep in mindFrequent rainSnow
A typical day in October
- Morning, 08:00: about 3°
- Midday, 13:00: about 10°
- Afternoon, 16:00: about 10°
- Evening, 20:00: about 7°
- Night, 23:00: about 3°
06:2320:10
Cold evenings: bring a warm jacket.
Estimated from the average high and low: coolest around sunrise, warmest in mid-afternoon.
Light for photos in October
- Golden hour
- Morning 05:59–07:11 · evening 19:21–20:33
- Blue hour
- Morning 05:44–05:59 · evening 20:33–20:48
Golden hour: the sun between 4° below and 6° above the horizon; blue hour: 6° to 4° below it. Times for the 15th of the month; mountains and clouds shift the light.
October in Puerto Williams compared with home
Loading the climate at home …
Early or late October?
In October, daytime highs rise from about 9° at the start of the month to 11° at the end. The sea warms from 6° to 7°. The days get 2.2 h longer.
| October | 1 Oct | 31 Oct |
|---|---|---|
| Daytime high | 9° | 11° |
| Night-time low | −1° | 1° |
| Sea | 6° | 7° |
| Daylight | 12.7 h | 14.9 h |
What is the weather like in Puerto Williams in October?
In October, Puerto Williams is cool: daytime highs average 10 °C, and nights cool down to about 0 °C. The sea averages 6.4 °C – swimming is only for the hardy. Expect around 5.0 hours of sunshine a day. It rains often – on about 16 days, adding up to 59 mm. Snow falls on about 4 days. All in all, October is not an ideal month for a holiday in Puerto Williams.
More details for October
- Daylight
- 13 h 47 min06:23 – 20:10
- UV index
- 4 · moderateclear sky, noon (estimate)All months
- Muggy days
- 0 daysdew point 18 °C or moreAll months
- Wind
- 22 km/haverage daily peakAll months
- Cloud cover
- 72 %on averageAll months
- Hot days
- 0 days30 °C or more
- Snow days
- 4 days1 cm or more of fresh snowAll months
- Time zone
- UTC−3offset from UTC
How the score comes together
- Temperatureweight 50 %26 %
- Sunshineweight 20 %33 %
- Few rainy daysweight 30 %12 %
Each factor is rated from 0 to 100 % and weighted for the travel style “Nature escape”.
What to pack in October
- Sunscreen
- A jumper for the evenings
- Hat, scarf & gloves
- Rain jacket or umbrella
Compare two months in Puerto Williams
Pick two months to see how the weather differs. A tick marks the clearly better value; for temperatures it depends on your plans.
January has the better holiday weather in Puerto Williams: score 44 against 23. In January, days are 5 °C warmer than in October. The sea is 3 °C warmer in January. January has 7 more rainy days. The sun shines an hour longer a day in January.
| Month | October | January |
|---|---|---|
| Holiday weather score | 23 | 44better |
| Daytime high | 10° | 15° |
| Night-time low | 0° | 5° |
| Sea | 6.4° | 9.0° |
| Sunshine | 5.0 h | 5.5 hbetter |
| Rainy days | 16better | 23 |
| Rainfall | 59 mmbetter | 120 mm |
Based on the climate averages 1996–2025.
Puerto Williams month by month
The typical weather for every month at a glance.
44January15° · Sea 9° · 5.5 h
In January, Puerto Williams is cool: daytime highs average 15 °C, and nights cool down to about 5 °C. The sea averages 9.0 °C – swimming is only for the hardy. Expect around 5.5 hours of sunshine a day. It rains often – on about 23 days, adding up to 120 mm. All in all, January is a so-so month for a holiday in Puerto Williams – and yet one of the best months here.
Puerto Williams in January43February14° · Sea 9° · 5.3 h
In February, Puerto Williams is cool: daytime highs average 14 °C, and nights cool down to about 5 °C. The sea averages 9.3 °C – swimming is only for the hardy. Expect around 5.3 hours of sunshine a day. It rains often – on about 18 days, adding up to 91 mm. All in all, February is a so-so month for a holiday in Puerto Williams – and yet one of the best months here.
Puerto Williams in February31March13° · Sea 9° · 4.2 h
In March, Puerto Williams is cool: daytime highs average 13 °C, and nights cool down to about 3 °C. The sea averages 9.1 °C – swimming is only for the hardy. Expect around 4.2 hours of sunshine a day. It rains often – on about 17 days, adding up to 82 mm. All in all, March is not an ideal month for a holiday in Puerto Williams.
Puerto Williams in March16April10° · Sea 8° · 3.4 h
In April, Puerto Williams is cold: daytime highs average 10 °C, and nights cool down to about 1 °C. The sea averages 8.4 °C – swimming is only for the hardy. The sun is scarce, with only about 3.4 hours a day. It rains often – on about 16 days, adding up to 67 mm. Snow falls on about 3 days. All in all, April is not an ideal month for a holiday in Puerto Williams.
Puerto Williams in April10May6° · Sea 8° · 2.7 h
In May, Puerto Williams is cold: daytime highs average 6 °C, and nights often drop below freezing (−2 °C). The sea averages 7.7 °C – swimming is only for the hardy. The sun is scarce, with only about 2.7 hours a day. Rain is frequent, with about 13 rainy days and 55 mm in total. Snow falls on about 5 days. All in all, May is not an ideal month for a holiday in Puerto Williams.
Puerto Williams in May12June3° · Sea 7° · 1.8 h
In June, Puerto Williams is bitterly cold: daytime highs average 3 °C, and nights often drop below freezing (−4 °C). The sea averages 6.9 °C – swimming is only for the hardy. The sun is scarce, with only about 1.8 hours a day. Precipitation falls on about 13 days, totalling 47 mm; on about 8 of them it snows. All in all, June is not an ideal month for a holiday in Puerto Williams.
Puerto Williams in June10July3° · Sea 6° · 2.1 h
In July, Puerto Williams is bitterly cold: daytime highs average 3 °C, and nights often drop below freezing (−5 °C). The sea averages 6.2 °C – swimming is only for the hardy. The sun is scarce, with only about 2.1 hours a day. Precipitation falls on about 14 days, totalling 46 mm; on about 8 of them it snows. All in all, July is not an ideal month for a holiday in Puerto Williams.
Puerto Williams in July13August4° · Sea 6° · 3.2 h
In August, Puerto Williams is cold: daytime highs average 4 °C, and nights often drop below freezing (−4 °C). The sea averages 5.7 °C – swimming is only for the hardy. The sun is scarce, with only about 3.2 hours a day. Precipitation falls on about 12 days, totalling 44 mm; on about 7 of them it snows. All in all, August is not an ideal month for a holiday in Puerto Williams.
Puerto Williams in August16September7° · Sea 6° · 4.3 h
In September, Puerto Williams is cold: daytime highs average 7 °C, and nights often drop below freezing (−3 °C). The sea averages 5.8 °C – swimming is only for the hardy. Expect around 4.3 hours of sunshine a day. Rain is frequent, with about 13 rainy days and 46 mm in total. Snow falls on about 6 days. All in all, September is not an ideal month for a holiday in Puerto Williams.
Puerto Williams in September23October10° · Sea 6° · 5.0 h
In October, Puerto Williams is cool: daytime highs average 10 °C, and nights cool down to about 0 °C. The sea averages 6.4 °C – swimming is only for the hardy. Expect around 5.0 hours of sunshine a day. It rains often – on about 16 days, adding up to 59 mm. Snow falls on about 4 days. All in all, October is not an ideal month for a holiday in Puerto Williams.
Puerto Williams in October32November12° · Sea 7° · 5.4 h
In November, Puerto Williams is cool: daytime highs average 12 °C, and nights cool down to about 2 °C. The sea averages 7.2 °C – swimming is only for the hardy. Expect around 5.4 hours of sunshine a day. It rains often – on about 21 days, adding up to 92 mm. Snow falls on about 3 days. All in all, November is not an ideal month for a holiday in Puerto Williams.
Puerto Williams in November38December14° · Sea 8° · 5.2 h
In December, Puerto Williams is cool: daytime highs average 14 °C, and nights cool down to about 4 °C. The sea averages 8.1 °C – swimming is only for the hardy. Expect around 5.2 hours of sunshine a day. It rains often – on about 24 days, adding up to 118 mm. Snow falls on about 2 days. All in all, December is not an ideal month for a holiday in Puerto Williams.
Puerto Williams in DecemberClimate in detail
Year & climate table
Climate through the year
Long-term monthly averages. Tap a month to see its details.
Nights and sleep in Puerto Williams
How warm the nights get in each month, from the mean night-time low. Tap a month for details.
- Frost below 0°
- Cold 0–8°
ColdOctober: nights around 0°. The room should be heated.
The coolest nights are in July (−5°), the warmest in January (5°). Nights fall below 8 °C on average all year round, so the room should be heated.
Temperatures through the year
Average daytime high, night-time low and sea temperature per month.
| Month | Score | Day | Night | Sea | Sun | Rain days | Rain mm |
|---|---|---|---|---|---|---|---|
| JanuaryJan | 44 | 15° | 5° | 9.0° | 5.5 h | 23 | 120 |
| FebruaryFeb | 43 | 14° | 5° | 9.3° | 5.3 h | 18 | 91 |
| MarchMar | 31 | 13° | 3° | 9.1° | 4.2 h | 17 | 82 |
| AprilApr | 16 | 10° | 1° | 8.4° | 3.4 h | 16 | 67 |
| MayMay | 10 | 6° | −2° | 7.7° | 2.7 h | 13 | 55 |
| JuneJun | 12 | 3° | −4° | 6.9° | 1.8 h | 13 | 47 |
| JulyJul | 10 | 3° | −5° | 6.2° | 2.1 h | 14 | 46 |
| AugustAug | 13 | 4° | −4° | 5.7° | 3.2 h | 12 | 44 |
| SeptemberSep | 16 | 7° | −3° | 5.8° | 4.3 h | 13 | 46 |
| OctoberOct | 23 | 10° | 0° | 6.4° | 5.0 h | 16 | 59 |
| NovemberNov | 32 | 12° | 2° | 7.2° | 5.4 h | 21 | 92 |
| DecemberDec | 38 | 14° | 4° | 8.1° | 5.2 h | 24 | 118 |
Climate averages 1996–2025 (sunshine partly WMO station normals 1991–2020), not a forecast. Data: Copernicus ERA5 / ERA5-Land via Open-Meteo.com (CC BY 4.0), NOAA OISST, WMO 1991–2020 (NOAA NCEI), GeoNames (CC BY 4.0). Sources & licences
54.93° S, 67.61° W · 7 m · America/Santiago
Sea temperature
Sea temperature in Puerto Williams
Monthly sea surface temperature with the range of cooler and warmer years.
8 in 10 years: 5.9 – 6.8 °C
Swimming season: Always below 20 °C
- cold
- fresh
- refreshing
- pleasant
- warm
- very warm
The sea temperature in Puerto Williams ranges from 5.7 °C in August to 9.3 °C in February. Even at its warmest the sea stays below 20 °C, so swimming is bracing at best.
The sea warms up slowly: it is warmest in February, while the air already peaks in January. From May to August the sea is even warmer than the afternoon air. The sea temperature varies from year to year: in February, eight out of ten years were between 8.9 and 9.8 °C.
| Month | Average | Cool year | Warm year | Feels |
|---|---|---|---|---|
| JanuaryJan | 9.0° | 8.4° | 9.8° | cold |
| FebruaryFeb | 9.3° | 8.9° | 9.8° | cold |
| MarchMar | 9.1° | 8.7° | 9.7° | cold |
| AprilApr | 8.4° | 7.9° | 9.2° | cold |
| MayMay | 7.7° | 7.1° | 8.3° | cold |
| JuneJun | 6.9° | 6.2° | 7.4° | cold |
| JulyJul | 6.2° | 5.6° | 6.7° | cold |
| AugustAug | 5.7° | 5.3° | 6.2° | cold |
| SeptemberSep | 5.8° | 5.6° | 6.1° | cold |
| OctoberOct | 6.4° | 5.9° | 6.8° | cold |
| NovemberNov | 7.2° | 6.7° | 7.8° | cold |
| DecemberDec | 8.1° | 7.5° | 8.6° | cold |
Sunshine
Sunshine hours in Puerto Williams
Average hours of bright sunshine per day, next to the length of the day. Tap a month to select it.
In October, the sun shines for about 5.0 of 13.8 hours of daylight in Puerto Williams, 36 % of the daylight hours.
Sunshine hours: estimated from radiation data (ERA5, 1996–2025) and calibrated against measured station values; no weather station is close enough here. Daylight is the time from sunrise to sunset on the 15th of the month.
Rain
Rain in Puerto Williams: rainy days and rainfall
A rainy day is a day with at least 1 mm of rain or snow; the amount is what falls in the whole month. Tap a month to select it.
In October, Puerto Williams has about 16 rainy days with 59 mm of rain in total.
UV index
UV index in Puerto Williams
How strong the sun is at noon, month by month, and how quickly unprotected skin burns.
- Clear-sky UV in October
- 4 · moderateAround midday seek shade; use sunscreen, a hat and sunglasses.
The sun is strongest in December (UV 7).
Minutes until sunburn in October
- Very fair skin
- about 35 min
- Fair skin
- about 40 min
- Light brown skin
- about 60 min
- Olive skin
- about 75 min
Rough guide for unprotected skin at noon under a clear sky; clouds lengthen the time, water, sand and snow shorten it. Sunscreen extends the time only partly.
Monthly values: clear-sky noon estimate from the sun's angle, ozone and altitude. UV today: Open-Meteo forecast.
Wind & clouds
Wind and clouds in Puerto Williams
How breezy and how cloudy Puerto Williams is through the year. Tap a month to select it on the whole page.
Wind
Typical daily peak of the wind in km/h: what the afternoon breeze usually reaches, not the gusts.
In October, the wind in Puerto Williams typically peaks at 22 km/h during the day: Beaufort 4, moderate breeze.
Breezy months for windsurfing and kiting
From Beaufort 4 (20 km/h) the daily breeze is usually enough for windsurfing and often for kiting: Oct – Mar.
Clouds
Average share of the sky covered by cloud, day and night.
In October, cloud covers on average 72 % of the sky over Puerto Williams: mostly cloudy, with about 5.0 hours of sunshine a day.
Wind: mean daily maximum of the hourly wind 10 m above ground (ERA5, 1996–2025). Gusts are stronger, and the model grid of about 28 km smooths out local effects such as capes and valley winds. Clouds: mean total cloud cover of all layers over day and night (ERA5, 1996–2025). Thin high cloud counts as cover even when the sun still shines through.
Snow
Snow in Puerto Williams
When Puerto Williams is likely to be white: the chance of seeing snow during a week's stay, the days with fresh snow and how much falls. Tap a month to select it.
Snow calendar
- hardly any
- possible
- likely
- very likely
In October, Puerto Williams has about 4 days with at least 1 cm of fresh snow, 13 cm in total. The chance of seeing snow during a week's stay is 42 out of 100: possible.
Snow days bring at least 1 cm of fresh snow. Fresh snow comes from ERA5 snowfall (1996–2025) at the height of the place, not on the slopes above it; the snow chance also weighs whether the snow settles. An estimate from climate averages, not a snow report.
Planning a trip to Puerto Williams
Weather for your travel dates
Pick your arrival and length of stay, and we sum up the weather to expect.
Puerto Williams in the school holidays
How the weather suits the usual holiday periods. Dates vary by school and region, so each holiday uses the months it usually falls in.
Puerto Williams has its best school-holiday weather during the Christmas holidays (score 41) and its weakest during May half-term (score 10).
- 21
Easter holidays
Mar – Apr
Poor
- 11 °C by day
- Sea 9 °C
- 3.6 h of sun a day
- 16 rainy days a month
Keep in mind: Frequent rain, Snow
- 10
May half-term
May – Jun
Poor
- 6 °C by day
- Sea 8 °C
- 2.5 h of sun a day
- 13 rainy days a month
Keep in mind: Frequent rain, Snow
- 12
Summer holidays
Jul – Aug
Poor
- 3 °C by day
- Sea 6 °C
- 2.8 h of sun a day
- 13 rainy days a month
Keep in mind: Frequent rain, Snow
- 23
October half-term
Oct
Poor
- 10 °C by day
- Sea 6 °C
- 5.0 h of sun a day
- 16 rainy days a month
Keep in mind: Frequent rain, Snow
- 41
Christmas holidays
Dec – Jan
FairBest holidays
- 14 °C by day
- Sea 9 °C
- 5.4 h of sun a day
- 24 rainy days a month
Keep in mind: Frequent rain
Based on the climate averages 1996–2025.
Getting there
Flying from
- Nonstop flight
- about 16 h 35 min
- Distance
- 13,350 km
- Time zone
- UTC−3
- Jet lag
- About 3 days (4 h west)
Rule of thumb for flying west: for a few days before, stay up a little later, and get afternoon and evening light at your destination.
Most routes need a change of planes, which adds time.
Estimated from the straight-line distance: 30 minutes for take-off and landing plus 830 km/h cruising speed.
Good to know: Chile
- Currency
- Chilean Peso (CLP)
- Language
- Spanish
- Sockets
- Type C, L · 220 V
- Traffic
- Drives on the right
- Dialling code
- +56
UK plugs need a travel adapter
Sources: GeoNames (CC BY 4.0) and Wikidata (CC0). Please check details before you travel.
Compare & alternatives
Compare with another place
Puerto Williams compared
Put Puerto Williams side by side with another destination.
Puerto Williams vs Ushuaia
In October Puerto Williams has the better holiday weather (score 23 vs 9). During the day Ushuaia is 2 °C cooler than Puerto Williams. The sea is about equally warm.
| in October | Puerto Williams | Ushuaia |
|---|---|---|
| Holiday weather score | 23 | 9 |
| Daytime high | 10° | 8° |
| Sea | 6° | 6° |
| Sunshine | 5 h | 5 h |
| Rainy days | 16 | 17 |
| Best time | Jan – Feb | Jan – Feb |
Through the year
Best places in the country
Chile in October: the best places
In October, Puerto Williams ranks 24 of 25 destinations in this country.
- San Pedro de Atacama25°100
- 2Calama25°100
- 3Antofagasta18°16°98
- 4Iquique25°18°97
- 5Valparaíso19°13°95
- 6Viña del Mar19°13°95
- 7Coquimbo18°14°92
- 8La Serena18°14°92
- 24Puerto WilliamsThis page10°6°23
Places nearby
Near Puerto Williams
Other destinations close by.
Places with a similar climate
Places with a climate like Puerto Williams
Destinations whose weather through the year is closest to Puerto Williams's – good alternatives.
Frequently asked questions about Puerto Williams
When is the best time to visit Puerto Williams?
The best time to visit Puerto Williams is from January to February. That is when the holiday weather score, which combines temperature, sea, sunshine and rain, is highest.
How warm is the sea in Puerto Williams?
The sea temperature in Puerto Williams ranges from 5.7 °C in August to 9.3 °C in February. Even at its warmest the sea stays below 20 °C, so swimming is bracing at best.
Can you swim in Puerto Williams in October?
Only if you don't mind cold water: in October the sea averages just 6.4 °C. Comfortable swimming temperatures are not reached at any time of year.
What is the warmest month in Puerto Williams?
January is the warmest month, with average highs of 15 °C and nights around 5 °C. July is the coolest month at 3 °C.
When does it rain most in Puerto Williams?
The wettest month is January with 120 mm of precipitation. The driest month is August with 44 mm.
How many hours of sunshine does Puerto Williams get?
Puerto Williams gets around 1,460 hours of sunshine a year. The sunniest month is January with 5.5 hours a day; in June there are 1.8 hours a day.
What time zone is Puerto Williams in?
Puerto Williams is on UTC−3 in January and UTC−4 in July.
How long is the flight from London to Puerto Williams?
A nonstop flight from London to Puerto Williams takes about 16 h 35 min, for a straight-line distance of about 13,350 km. Most routes need a change of planes, which adds time.
Which school holidays are best for Puerto Williams?
Puerto Williams has its best school-holiday weather during the Christmas holidays (score 41) and its weakest during May half-term (score 10). Holiday ratings (0–100): Easter holidays 21, May half-term 10, summer holidays 12, October half-term 23, Christmas holidays 41.